Friday, 15 June 2018
15-6-2018 MONTE CORONA, VALENCIA - WAVE MOTH (Scopula minorata)
Scopula minorata is a moth of the family Geometridae. It was described by Jean Baptiste Boisduval in 1833. It is found in Africa south of the Sahara, the Arabian Peninsula and on the islands of the Indian Ocean. Furthermore, it is found in southern Europe. It can be distinguished from Scopula lactaria only by examination of its genitalia.
The wingspan is 15–20 millimetres (0.59–0.79 in).
23-3-2018 BOULDER BEACH, CAPE TOWN - HADADA IBIS (Bostrychia hagedash)
The Hadada Ibis, Bostrychia hagedash, is a medium-sized bird native to the diverse landscapes of Sub-Saharan Africa. It is characterized by its stout legs and distinctive down-curved bill. The adult Hadada Ibis typically measures around 76 cm in length and weighs approximately 1.2 kg. Both sexes share similar plumage, which is primarily grey to partly brown, with a striking iridescent sheen of green or purple on the wing coverts.
When observing the Hadada Ibis, look for the narrow white stripe across its cheeks, often referred to as the "moustache," though it does not extend to the mouth corners. During the breeding season, the bird sports a red culmen on the upper mandible's basal half and similarly colored upper toe surfaces. Its powerful and broad wings facilitate quick take-offs and agile flight through dense foliage.
The Hadada Ibis thrives in a variety of habitats, including open grasslands, savannas, wetlands, and increasingly in urban environments such as parks, school fields, and residential gardens. It prefers areas with moist and soft soils, which are conducive to its foraging habits.
This species is widespread across Sub-Saharan Africa, with its range extending from Sudan to South Africa. The Hadada Ibis has seen a notable range expansion in southern Africa, attributed to increased tree cover and irrigation in human-altered landscapes.
The Hadada Ibis is known for its social roosting behavior, often in groups atop trees. It is a diurnal bird, vocalizing loudly during morning and evening flights. Its diet consists of insects, millipedes, earthworms, and other small invertebrates, which it hunts using its long, scimitar-like bill to probe the soil. The Hadada Ibis is also appreciated in urban settings for its role in controlling pests on lawns and greens.
The Hadada Ibis is renowned for its loud "haa-haa-haa-de-dah" call, which is particularly prominent during flight or when startled. This call has earned the species its onomatopoeic name. While roosting, a single loud "haaaa" can be heard, and a low growl, akin to a young puppy's, serves as a contact call when foraging.
Monogamous by nature, Hadada Ibises maintain pair bonds year-round. Breeding is timed with the rainy season, with nests constructed as twig platforms in large trees. Both parents incubate the typical clutch of three to four eggs for about 26 days, and the fledglings leave the nest after approximately 33 days.
The Hadada Ibis can be distinguished from other ibis species by its unique vocalizations, the iridescent sheen on its wings, and the red coloration on its bill and toes during the breeding season.
Hadada Ibises primarily feed on soil invertebrates, which they detect using sensory pits around their bill tips. They are also known to consume snails and small reptiles, providing a natural pest control service in both natural and urban settings.
The IUCN Red List classifies the Hadada Ibis as Least Concern due to its extensive and common presence throughout its large range. The species has adapted well to human-modified environments, contributing to its stable population status.
23-3-2018 BOULDERS BAY, SOUTH AFRICA - CAPE WAGTAIL (Motacilla capensis ssp capensis)
The Cape wagtail, or Wells's wagtail, is a modestly adorned bird with a relatively short tail. Its upperparts are an unassuming olive grey, while the face is similarly hued, accented by a tan supercilium and dark lores. The underparts are a soft creamy white, occasionally showing a subtle pinkish tinge on the lower breast and belly. A dusky breast band is present, and the flanks share the olive-grey of the breast. The wings are a brownish black with pale feather edging, and the tail is predominantly blackish, save for the white outer feathers. Juveniles resemble adults but are a touch browner above and have a more yellowish hue below.
Look for the iconic black triangle on the chest, a key feature for identification. There is no sexual dimorphism in plumage, so males and females appear alike.
The Cape wagtail is a versatile species, inhabiting areas near water such as riverbanks, as well as rocky coastlines, farms, villages, cultivated lands, parks, gardens, and urban centres. In East Africa, it is typically found at altitudes above 2,000 meters.
This bird is widespread in eastern and southern Africa, ranging from Uganda and Kenya, through Zambia and Angola, and down to the Western Cape and the Cape of Good Hope.
The species is mostly resident and territorial, but some may migrate altitudinally or form flocks outside the breeding season.
Cape wagtails are monogamous and may remain with their breeding partner across multiple seasons. They are solitary nesters, constructing nests in a variety of natural and artificial recesses. Breeding can occur year-round, with a peak from mid-winter to early summer. Clutches typically consist of one to five eggs, incubated by both parents for about two weeks. Chicks are fed by both parents and fledge in about two to three weeks, with full independence reached approximately one to two months post-fledging.
The Cape wagtail's diet consists mainly of invertebrates, which it hunts on the ground or in shallow water. It is known to feed on a variety of prey, including insects, fiddler crabs, sandhoppers, snails, ticks, tadpoles, small fish, and even small chameleons. It is also known to consume carrion and occasionally human food.
The Cape wagtail is classified as Least Concern by the IUCN, indicating that it is not currently at significant risk of widespread decline.
23-3-2018 BOULDERS BEACH, SOUTH AFRICA - AFRICAN PENGUIN (Spheniscus demersus)
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The African penguin, known scientifically as Spheniscus demersus and colloquially as the Cape penguin or South African penguin, is a flightless bird distinguished by its streamlined body and flippers adapted for life in the water. Adults typically weigh between 2.2 and 3.5 kilograms and stand 60 to 70 centimeters tall. Notable for the pink patches of skin above their eyes and a stark black facial mask, their upper parts are a contrasting black against the white underparts, which are adorned with spots and a distinctive black band.
To identify the African penguin, look for the unique pink gland above their eyes, which becomes more vibrant as they regulate their temperature. Their black and white plumage is a classic example of countershading, providing camouflage from predators. Each penguin has a unique pattern of black spots on the chest, akin to human fingerprints. Males are generally larger with longer beaks than females.
These penguins are found along the coastlines of southern Africa, with colonies established on various islands and some mainland sites. They prefer nesting in burrows or under vegetation to protect against predators and the hot sun.
Thursday, 14 June 2018
13-6-2018 ULLAL DE BOLDOVI, VALENCIA - LITTLE GREBE (Tachybaptus ruficollis)
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The Little Grebe, or Tachybaptus ruficollis, known colloquially as the dabchick, is the smallest European member of the grebe family. This diminutive water bird measures a mere 23 to 29 centimeters in length and is a common sight in open bodies of water across its range.
In the summer, the adult Little Grebe is a sight to behold with its dark upper parts and a striking rufous coloration on the neck, cheeks, and flanks, complemented by a bright yellow gape. Outside of the breeding season, the plumage turns to a more subdued brownish-grey. Juveniles can be identified by their yellow bills tipped with black and streaked cheeks. In winter, the species is recognizable by its buff plumage, darker back and cap, and distinctive rear end.
The Little Grebe favors heavily vegetated areas of freshwater lakes for breeding. It is adept at using this dense vegetation as a cover.
This bird has a broad range, breeding across Europe, much of Asia down to New Guinea, and most of Africa. In winter, many individuals move to open or coastal waters, and it becomes migratory in regions where waters freeze.
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An excellent swimmer and diver, the Little Grebe hunts for fish and aquatic invertebrates underwater. It nests at the water's edge, covering its eggs with weeds when leaving the nest to evade predators. The young are capable swimmers soon after hatching and are often seen riding on the backs of adults.
The breeding call of the Little Grebe is a distinctive trilled weet-weet-weet or wee-wee-wee, reminiscent of a horse's whinny.
Breeding occurs in small colonies. The Little Grebe lays four to seven eggs, and the chicks are precocial, swimming shortly after hatching. In India, the species breeds during the monsoon season.
Its diet consists primarily of fish and aquatic invertebrates, which it hunts proficiently underwater.
13-6-2018 RACO DE OLLA, VALENCIA - LITTLE EGRET (Egretta garzetta)
The Little Egret, Egretta garzetta, is a dainty heron adorned in pure white plumage. It is characterized by a slender black beak, long black legs, and, notably in the western race, yellow feet. This elegant bird is a sight to behold with its graceful neck and poised stance.
Adult Little Egrets measure between 55–65 cm in length with a wingspan of 88–106 cm, and weigh 350–550 g. Their plumage is predominantly white, though some may exhibit bluish-grey coloration. Breeding adults boast ornate nape plumes reaching about 150 mm, along with distinctive feathers on the breast and elongated scapulars. The bill and lores are black, with greenish-grey skin at the base of the lower mandible and around the eye, which houses a yellow iris. Legs are black with contrasting yellow feet, though juveniles may have greenish-black legs and duller feet. The subspecies E. g. nigripes is distinguished by yellow skin between the bill and eye, and blackish feet.
The Little Egret frequents a variety of wetland habitats, from the shores of lakes and rivers to marshes and coastal regions. It is often found in open environments, such as mangroves, swamps, mudflats, and sandy beaches, as well as human-altered landscapes like rice fields.
The species has a broad breeding distribution across warm temperate to tropical regions of Asia, Africa, Australia, and Europe. Northern populations are migratory, wintering in Africa and southern Asia, while others remain as permanent residents in warmer areas.
Little Egrets are social yet territorial when feeding. They exhibit a range of foraging behaviors, from active chasing to patient ambush. Their movements are often in response to the presence of other animals, which may stir up prey.
The Little Egret's vocalizations include croaking and bubbling sounds at breeding colonies and a harsh alarm call when disturbed. These calls are similar to those of the Black-crowned Night Heron and the Cattle Egret.
Breeding colonies are often mixed with other water birds. Nests are platforms of sticks located in trees, shrubs, or reed beds. Clutches typically consist of three to five bluish-green eggs, incubated by both parents for about three weeks. The young fledge at approximately six weeks old.
The diet is diverse, including fish, amphibians, small reptiles, mammals, birds, crustaceans, molluscs, insects, spiders, and worms. The Little Egret employs various hunting techniques, both in water and on land, to capture its prey.
13-6-2018 ALBUFERA, VALENCIA - BLACK WINGED STILT (Himantopus himantopus)
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The Black-winged Stilt, Himantopus himantopus, is a slender wader known for its strikingly long, pink legs and contrasting black-and-white plumage. This elegant bird is a member of the avocet and stilt family, Recurvirostridae.
Adult Black-winged Stilts measure 33–36 cm in length. They possess a long, thin black bill and display a distinctive black and white coloration. The head and neck are predominantly white, with variable black markings depending on the sex and subspecies. Males typically have a glossy or greenish sheen on their black backs, while females exhibit a more brownish tinge. During flight, their long legs trail behind, and their wingbeats are steady.
These birds favor marshes, shallow lakes, and ponds as their breeding grounds. They are also known to inhabit coastal areas during migration and in the winter months.
The Black-winged Stilt has a wide range, extending across Europe, Asia, and Africa. Some populations migrate to coastal regions in winter, while others in milder climates may remain resident or engage in short-range movements.
13-6-2018 ALBUFERA, VALENCIA - GLOSSY IBIS (Plegadis falcinellus)
The glossy ibis (Plegadis falcinellus) is a water bird in the order Pelecaniformes and the ibis and spoonbill family Threskiornithidae. The scientific name derives from Ancient Greek plegados and Latin, falcis, both meaning "sickle" and referring to the distinctive shape of the bill.
This is the most widespread ibis species, breeding in scattered sites in warm regions of Europe, Asia, Africa, Australia, and the Atlantic and Caribbean regions of the Americas. It is thought to have originated in the Old World and spread naturally from Africa to northern South America in the 19th century, from where it spread to North America. The glossy ibis was first documented in the New World in 1817 (New Jersey). Audubon saw the species just once in Florida in 1832. It expanded its range substantially northwards in the 1940s and to the west in the 1980s. This species is migratory; most European birds winter in Africa, and in North America birds from north of the Carolinas winter farther south. Though generally suspected to be a migratory species in India, the glossy ibis is resident in western India. Birds from other populations may disperse widely outside the breeding season. It is increasing in Europe. It disappeared as a regular breeding bird in Spain in the early 20th century, but re-established itself in 1993 and has since rapidly increased with thousands of pairs in several colonies. It has also established rapidly increasing breeding colonies in France, a country with very few breeding records before the 2000s. An increasing number of non-breeding visitors are seen in northwestern Europe, a region where glossy ibis records historically were very rare. For example, there appears to be a growing trend for birds to winter in Britain and Ireland, with at least 22 sightings in 2010. In 2014, a pair attempted to breed in Lincolnshire, the first such attempt in Britain. The first successful breeding in Britain was a pair which fledged one young in Cambridgeshire in 2022. A few birds now spend most summers in Ireland, but there is no present evidence of breeding. In New Zealand, a few birds arrive there annually, mostly in the month of July; recently a pair bred amongst a colony of royal spoonbill.
Glossy ibises undertake dispersal movements after breeding and are highly nomadic. The more northerly populations are fully migratory and travel on a broad front, for example across the Sahara Desert. Glossy ibis ringed in the Black Sea seem to prefer the Sahel and West Africa to winter, those ringed in the Caspian Sea have been found to move to East Africa, the Arabian peninsula and as far east as Pakistan and India. Numbers of glossy ibis in western India varied dramatically seasonally with the highest numbers being seen in the winter and summers, and drastically declining in the monsoon likely indicating local movements to a suitable area to breed. Populations in temperate regions breed during the local spring, while tropical populations nest to coincide with the rainy season. Nesting is often in mixed-species colonies. When not nesting, flocks of over 100 individuals may occur on migration, and during the winter or dry seasons the species is usually found foraging in small flocks. Glossy ibises often roost communally at night in large flocks, with other species, occasionally in trees which can be some distance from wetland feeding areas.
Wednesday, 13 June 2018
Tuesday, 12 June 2018
23-3-2018 BOULDER BAY, SOUTH AFRICA - KAROO PRINIA (karoo prinia)
The Karoo prinia, or spotted prinia (Prinia maculosa), presents itself as a small, active passerine bird, measuring between 13 to 15 centimeters in length. It is adorned with short, rounded wings, a longish tail that it often holds cocked, and robust legs. Its bill is short and straight, colored a deep black. The bird's head features a whitish eyebrow, while the upperparts are a plain brown. The throat and lower face are whitish with dark streaking, and the underparts are a pale yellowish white or yellow, marked with distinct black streaking. A notable dark spot near the end of the long tail adds to its distinctive appearance. The feet and legs are a pinkish-brown, and the eye is a deep, dark brown. Both sexes of the Karoo prinia are identical in plumage, though juveniles can be distinguished by their much yellower underparts and lighter streaking.
When identifying the Karoo prinia, look for the bird's whitish eyebrow and the streaked underparts. The tail is typically held at an angle and has a dark spot near the end. Juveniles are yellower below and less heavily streaked than adults.
This species is found in karoo scrub, fynbos, and bracken-covered slopes, favoring semi-desert and mountainous environments.
The Karoo prinia is a resident breeder in South Africa, Lesotho, and the southernmost parts of Namibia.
The Karoo prinia is often observed in pairs or small groups. It is a bird that prefers the lower strata of scrub but may occasionally be seen perching atop a bush. It is known for its active foraging behavior, searching for small insects with a tail that is characteristically cocked and swung from side to side.
The vocal repertoire of the Karoo prinia includes a sharp "chleet-chleet-chleet-chleet-chleet-chleet" and a fast, buzzy "tit-tit-tit-tit-tit."
Breeding behavior includes constructing a thin-walled oval nest with a side entrance, woven from green grass and well concealed within a leafy shrub or bush. The breeding season varies by region, occurring from August to September in areas with winter rainfall and extending to December in other locales.
The diet consists primarily of small insects, which the Karoo prinia actively seeks out in its preferred habitats.
The Karoo prinia is classified as Least Concern by the IUCN Red List. It has a large range, estimated at 670,000 square kilometers, and the population size is believed to be large, with no immediate threats that would warrant concern over population decline.
23-3-2018 BOULDERS BAY, SOUTH AFRICA - CAPE WAGTAIL (Motacilla capensis ssp capensis)
The Cape wagtail, or Wells's wagtail, is a modestly adorned bird with a relatively short tail. Its upperparts are an unassuming olive grey, while the face is similarly hued, accented by a tan supercilium and dark lores. The underparts are a soft creamy white, occasionally showing a subtle pinkish tinge on the lower breast and belly. A dusky breast band is present, and the flanks share the olive-grey of the breast. The wings are a brownish black with pale feather edging, and the tail is predominantly blackish, save for the white outer feathers. Juveniles resemble adults but are a touch browner above and have a more yellowish hue below.
Look for the iconic black triangle on the chest, a key feature for identification. There is no sexual dimorphism in plumage, so males and females appear alike.
The Cape wagtail is a versatile species, inhabiting areas near water such as riverbanks, as well as rocky coastlines, farms, villages, cultivated lands, parks, gardens, and urban centres. In East Africa, it is typically found at altitudes above 2,000 meters.
This bird is widespread in eastern and southern Africa, ranging from Uganda and Kenya, through Zambia and Angola, and down to the Western Cape and the Cape of Good Hope.
The species is mostly resident and territorial, but some may migrate altitudinally or form flocks outside the breeding season.
Cape wagtails are monogamous and may remain with their breeding partner across multiple seasons. They are solitary nesters, constructing nests in a variety of natural and artificial recesses. Breeding can occur year-round, with a peak from mid-winter to early summer. Clutches typically consist of one to five eggs, incubated by both parents for about two weeks. Chicks are fed by both parents and fledge in about two to three weeks, with full independence reached approximately one to two months post-fledging.
The Cape wagtail's diet consists mainly of invertebrates, which it hunts on the ground or in shallow water. It is known to feed on a variety of prey, including insects, fiddler crabs, sandhoppers, snails, ticks, tadpoles, small fish, and even small chameleons. It is also known to consume carrion and occasionally human food.
23-3-2018 BOULDERS BAY, SOUTH AFRICA - SOUTHERN ROCK AGAMA (Agama atra)
The southern rock agama or southern African rock agama (Agama atra) is a species of lizard from the family Agamidae that occurs in Southern Africa in Zambia, South Africa, Eswatini, Mozambique, Zimbabwe and Botswana. It lives in small colonies on rocky outcrops, and the males are very conspicuous for their bright blue heads.
The natural range of this species is over the entire South Africa and Botswana, excluding only sandy areas of the Northern Cape and portions of the Limpopo, Mpumalanga, and KwaZulu-Natal provinces.
This rather sociable agama is normally found in small groups or colonies. It grows up to about 25 cm and has a thin dorsal crest that runs the length of its body. It typically has a short, plump body and a thin tail, with a triangular head. During the breeding season, the heads of the males become bright blue. The males also take to sitting on top of prominent rocks and are therefore a common sight in mountainous areas of South Africa. The females and young are a more uniform greyish-brown and are much more shy.
These active, diurnal lizards normally hunt small insects such as ants and termites. They sometimes adjust to living near urban areas and can even live in rocky gardens. However, the increasingly dense populations of domestic cats being kept as pets in suburban areas have unfortunately led to a decline in population, as these introduced predators tend to kill all the agamas in the immediate area. Agama atra's natural predators in the wild include the fiscal shrike and various snakes. Agama atra is also easy prey for eagles and larger reptiles. Under attack the Agamas go into hiding and will only return once the danger is over. Some Agamas are kept as household pets and generally have a good relationship with their pet owners.
A. atra has some ability to change colour, although not to the same extent as chameleons, of which the Agamidae are a sister group. When a male agama in breeding colouration is approached by a potential predator, it will lie flat against a rock and lose the intense breeding colours in favour of more cryptic colouration. A dominant male usually occupies a high point in the area and performs a pushup display and head nodding to warn off intruders.
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